Sources close to Justin Bieber are insisting that he doesn't do cocaine and never has "in …
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According
to TMZ, Bieber is undergoing further blood alcohol tests at a Miami police station. When that's finished, he'll be transferred to jail, where he'll be booked and processed.

Shortly after leaving a club early Thursday, Bieber was reportedly pulled over in his yellow Lamborghini for drag racing and given a sobriety test. His passenger was also arrested, according to TMZ's sources. CNN has also confirmed Bieber's arrest.

According to Miami police, Bieber's entourage blocked an intersection for the race. From the Miami New Times:

Earlier
this month, Bieber's home was searched after he allegedly pelted a
neighbor's home with eggs. During that search, Lil Za, a member of Bieber's crew, was arrested for
cocaine possession. And last fall, it was alleged that Bieber hired prostitutes in Panama and Brazil.